* {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.case-content {
    overflow: hidden;
    margin: 80px auto 0 auto;
    width: 960px
}
/*width可以限制每行元素个数*/

.case-item {
    float: left;
    margin: 30px 40px;
    margin-bottom: 20px
}

.ih-item {
    position: relative;
    -webkit-transition: all .35s ease-in-out;
    -moz-transition: all .35s ease-in-out;
    transition: all .35s ease-in-out
}

.ih-item, .ih-item * {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

.ih-item a {
    color: #333
}

.ih-item a:hover {
    text-decoration: none
}

.ih-item img {
    width: 100%;
    height: 100%
}

.ih-item.circle, .ih-item.circle .img {
    position: relative;
    width: 210px;
    height: 210px;
    border-radius: 50%
}

.ih-item.circle .img:before {
    position: absolute;
    display: block;
    content: '';
    width: 100%;
    height: 100%;
    border-radius: 50%;
    box-shadow: inset 0 0 0 16px rgba(255, 255, 255, .6), 0 1px 2px rgba(0, 0, 0, .3);
    -webkit-transition: all .35s ease-in-out;
    -moz-transition: all .35s ease-in-out;
    transition: all .35s ease-in-out
}

.ih-item.circle .img img {
    border-radius: 50%
}

.ih-item.circle .info {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    border-radius: 50%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

.ih-item.square {
    position: relative;
    width: 316px;
    height: 216px;
    border: 8px solid #fff;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, .3)
}

.ih-item.square .info {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

.ih-item.circle.effect1 .spinner {
    width: 220px;
    height: 220px;
    border: 10px solid #ecab18;
    border-right-color: #1ad280;
    border-bottom-color: #1ad280;
    border-radius: 50%;
    -webkit-transition: all .8s ease-in-out;
    -moz-transition: all .8s ease-in-out;
    transition: all .8s ease-in-out
}

.ih-item.circle.effect1 .img {
    position: absolute;
    top: 10px;
    bottom: 0;
    left: 10px;
    right: 0;
    width: auto;
    height: auto
}

.ih-item.circle.effect1 .img:before {
    display: none
}

.ih-item.circle.effect1.colored .info {
    background: #1a4a72;
    background: rgba(26, 74, 114, .6)
}

.ih-item.circle.effect1 .info {
    top: 10px;
    bottom: 0;
    left: 10px;
    right: 0;
    background: #333;
    background: rgba(0, 0, 0, .6);
    opacity: 0;
    -webkit-transition: all .8s ease-in-out;
    -moz-transition: all .8s ease-in-out;
    transition: all .8s ease-in-out
}

.ih-item.circle.effect1 .info h3 {
    color: #fff;
    text-transform: uppercase;
    position: relative;
    letter-spacing: 2px;
    font-size: 24px;
    margin: 0 30px;
    padding: 55px 0 0;
    height: 110px;
    text-shadow: 0 0 1px white, 0 1px 2px rgba(0, 0, 0, .3)
}

.ih-item.circle.effect1 .info p {
    color: #bbb;
    padding: 10px 5px;
    font-style: italic;
    margin: 0 30px;
    font-size: 12px;
    border-top: 1px solid rgba(255, 255, 255, .5)
}

.ih-item.circle.effect1 a:hover .spinner {
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg)
}

/*去掉则有动态效果，不遮盖图片*/
.ih-item.circle.effect1 a .info {
    opacity: 0.8;
    -moz-opacity: 0.8; /* Moz + FF */
}
/*设置文字透明度*/
.ih-item.circle.effect1 a:hover .info {
    opacity: 0;
    -moz-opacity: 0; /* Moz + FF */
}

.alert {
    filter: alpha(opacity=100); /* IE */
    -moz-opacity: 1.0; /* Moz + FF */
    opacity: 1.0;
    position: absolute;
}